diff --git a/tisobe/src/B163.java b/tisobe/src/B163.java
new file mode 100644
index 0000000000000000000000000000000000000000..6611030cd2d385db424ddfa2ec288fe369887fe0
--- /dev/null
+++ b/tisobe/src/B163.java
@@ -0,0 +1,59 @@
+package tisobe.src;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Scanner;
+
+public class B163 {
+  public static void main(String[] args) {
+    final Scanner sc = new Scanner(System.in);
+    final int PICTURE_HEIGHT = sc.nextInt();
+    final int PICTURE_WIDTH = sc.nextInt();
+
+    // 入力値から山の作成
+    final List<List<String>> picture = new ArrayList<>();
+    for (int i = 0; i < PICTURE_HEIGHT; i++) {
+      picture.add(Arrays.asList(sc.next().split("")));
+    }
+    Mountain mountain = new Mountain();
+    int maxSizeMountain = mountain.calcMtHuge(picture, PICTURE_HEIGHT, PICTURE_WIDTH);
+    System.out.println(maxSizeMountain);
+    sc.close();
+  }
+  
+  public static class Mountain {
+    final int resetNumber = 0; // countの初期値
+    int numOfOne = 0;
+    int numOfZero = 0;
+    final List<Integer> mountainSize = new ArrayList<Integer>();
+    
+    /**
+     * pictureから山の大きさをリストに格納し、最大値を返却
+     * 
+     * @Param numOfOne mountainの中の"1"の数 (山が存在する部分を数えた数)
+     * @Param numOfZero mountainの中の"0"の数 (山が存在しない部分を数えた数) mtHugeList 山の大きさを格納したリスト
+     * @return mountainSize中の最大値 (一番大きな山の大きさ)
+     */
+    public int calcMtHuge(final List<List<String>> mountain, final int mtHeight,
+        final int mtWidth) {
+      for (int x = 0; x < mtWidth; x++) {
+        numOfZero = resetNumber;
+        for (int y = 0; y < mtHeight; y++) {
+          if (mountain.get(y).get(x).equals("1")) {
+            numOfOne += 1;
+          } else {
+            numOfZero += 1;
+          }
+        }
+        if (numOfZero == mtHeight) {
+          numOfOne = 0;
+        }
+        mountainSize.add(numOfOne);
+      }
+      return Collections.max(mountainSize);
+    }
+
+  }
+}